import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from "../components/Home.vue"
import Welcome from "../components/Welcome.vue"
import Users from "../components/user/Users.vue"
import Rights from "../components/power/Rights.vue"
import Roles from "../components/power/Roles.vue"
import Cate from "../components/goods/Cate.vue"
Vue.use(VueRouter)

const routes = [
  {
    path: '/',
    redirect: '/login'
  },
  {
    path: '/login',
    component: Login
  },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [
      {
        path: "/welcome",
        component: Welcome
      },
      {
        path: "/users",
        component: Users
      },
      {
        path: "/rights",
        component: Rights
      },
      {
        path: "/roles",
        component: Roles
      },
      {      
        path: "/categories",
        component: Cate
      }
    ]
  }
]

const router = new VueRouter({
  routes
})

//挂载路由导航
router.beforeEach((to, from, next) => {
  //to  将要访问的路径
  //from 代表从那个路径跳转而来
  //next 是一个函数，表示放行
  //next() 放行 next('/login') 强制跳转
  if (to.path === '/login') return next();
  const tokenstr = window.sessionStorage.getItem('token')
  if (!tokenstr) return next('/login')
  next()
})


export default router
